TPS734 250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator |

TPS734 (ACTIVE) 250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator


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The TPS734xx family of low-dropout (LDO), low-power linear regulators offers excellent ac performance with very low ground current. High power-supply rejection ratio (PSRR), low noise, fast start-up, and excellent line and load transient response are provided while consuming a very low 44µA (typical) ground current. The TPS734xx is stable with ceramic capacitors and uses an advanced BiCMOS fabrication process to yield a typical dropout voltage of 125mV at 250mA output. The TPS734xx uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over all load, line, process, and temperature variations. It is fully specified from TJ = -40°C to +125°C and is offered in low-profile ThinSOT-23, 2mm × 2mm SON, and 3mm × 3mm SON packages that are ideal for wireless handsets, printers, and WLAN cards.


  • 250mA Low Dropout Regulator with EN
  • Low IQ: 44µA
  • Multiple Output Voltage Versions Available:
    • Fixed Outputs of 1.0V to 4.3V Using Innovative Factory EEPROM Programming
    • Adjustable Outputs from 1.25V to 6.2V
  • High PSRR: 60dB at 1kHz
  • Ultra-low Noise: 28µVRMS
  • Fast Start-Up Time: 45µs
  • Stable with a Low-ESR, 2.0µF Typical Output Capacitance
  • Excellent Load/Line Transient Response
  • 2% Overall Accuracy (Load/Line/Temp)
  • Very Low Dropout: 125mV at 250mA
  • ThinSOT-23, 2mm × 2mm SON-6, and 3mm × 3mm SON-8 Packages
    • WiFi, WiMax
    • Printers
    • Cellular Phones, SmartPhones
    • Handheld Organizers, PDAs

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Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS734 Order now Adjustable Output
Fixed Output    
0.25     6.5     2.7     6.3     1.2     1.8
SOT-23-THIN | 5
WSON | 6    
Enable     1     -40 to 125     65     28     0.34 | 1ku     Catalog     28     2     125     0.044     5SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 5)
See datasheet (WSON)    
TPS735 Order now Adjustable Output
Fixed Output    
0.5     6.5     2.7     6     1.2     1.2
SON | 8
WSON | 6    
Enable     1     -40 to 125     52     16.5     0.49 | 1ku     Catalog     28     2     280     0.045     See datasheet (SON)
See datasheet (WSON)